tylbe



A. J. TYLER.

(No Model.)

BENCH HOOK.

N0. 341,436. Patented May 4, 1886 N. PETERS. Pholouuwgnphcr. washingtonD. C.

. drawings.

UNITED STATES PATENT OEEICEO AARON J. TYLER, OF ALBION, NEW YORK,ASSIGNOR TO EDWARD C.

COLE, OF SAME PLAGE.

BENCH-Hoon SPECIFICATION forming part of Letters Patent No.341,436,dated May 4, 1886. Application filed January 14, 18H6. Serial No.188,534. (No model.)

To all whom it may concern.-

Be it known that'I, AARON J. TYLER, a citizen oi' the United States,residing at Albion, in the county of Orleans and Stat-e of New York,have invented certain new and useful Improvements in Bench-Hooks, ofwhich the following is a specification, reference being had therein tothe accompanying My invention relates to bench-hooks, and is intended asan improvement upon an in. vention bearing a similar title and filed inthe Patent Ofce November 12, 1885. Y

The object of the present invention is to provide a double hook and oneto be used in the planing of wide boards. attain by the meansillustrated in the accompanying drawings, in which- Figure 1 representsa vertical sectional view of my device, and Fig. 2 a plan view of same.

In the figures, A represents a rectangular metallic plate, which is letinto the top of a workbench, so that its upper surface will be ilushwith it, and is there secured by suitable screws. Depending from andforming a part of this plate are two hollow boxes, A A, squareinternally and open at both ends.

G G represent two hollow cases, which are adapted to fit and move up anddown in the boxes A A. These cases are open at their lower ends, andcontain within them spiral springs H H.

B B represent two levers, which are serrated or roughencd on their innerfaces, as indicated by the letter B', their lower ends being turned atright angles to the bodies of the levers, and these turned portions aremade diskshaped, as indicated by theletter B. The bottoms or lower endsof the springs H H rest upon and are secured to these disks. The upperends of the levers B B are pivoted or hinged between ears formed uponthe boxes A A, as seen at b b.

C represents a toggle-lever, the two arms of which are pivoted betweenears @c x on the This object I levers B B, the center of the togglebeing on a line above that of its pivoted ends.

The plate A is provided with a central depression, in which plays theprongs of the head of a set-screw, F. `This set-screw passes through thebottoni of the depression, and its point or lower end rests upon thecenter 0f the toggle-lever. This screw presses the toggle downward,audits two arms,`D D', press the levers B B against the cases G G, andstation them wherever desired,

The upper ends of the cases are represented by the solid cap-pieces gg,which have a projecting flange with serrated edges, for holding the endsof the plank or board to be planed.

The upper ends of the springs H H press against the under sides of thecap-pieces g g and cause the cases G G to move upward any requireddistance. The eases are there caught and held by the arlns of thetoggle-lever until a change of position is required. The cases arepressed downward by hand, upward by the springs, and held in positionwherever desired by the toggle-lever.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The combination, with the plate A, having hollow dependent boxes open atboth ends, of the hollow cases G, adapted to move vertically in thesame, and having serrated heads, the springs H', located in said boxes,the pivoted levers B, having their lower ends provided with disks O,against which the lower ends of the springs bear, the toggle-lever D,connected to said lever C, and the set-screwF, passing th rough theplate A and bearing against the toggle-lever, whereby' the parts areoperated, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

AARON J. TYLER.4

Vitnesses:

CHARLES B. ANDERSON, EDWIN BRoNsoN.

